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1 | // { dg-do compile { target c++20 } } | |
2 | ||
3 | // Copyright (C) 2020-2024 Free Software Foundation, Inc. | |
4 | // | |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | // Class template day [time.cal.day] | |
21 | ||
22 | #include <chrono> | |
23 | ||
24 | constexpr void | |
25 | constexpr_day() | |
26 | { | |
27 | using namespace std::chrono; | |
28 | ||
29 | day dd{}; | |
30 | ++(++dd); | |
31 | dd++; | |
32 | --(--dd); | |
33 | dd--; | |
34 | dd += days{3}; | |
35 | dd -= days{3}; | |
36 | ||
37 | static_assert(day{1} + days{2} == day{3}); | |
38 | static_assert(days{2} + day{1} == day{3}); | |
39 | static_assert(day{3} - day{1} == days{2}); | |
40 | static_assert(day{3} - days{1} == day{2}); | |
41 | ||
42 | static_assert(++day{4} == day{5}); | |
43 | static_assert(day{4}++ == day{4}); | |
44 | static_assert(--day{4} == day{3}); | |
45 | static_assert(day{4}-- == day{4}); | |
46 | static_assert((day{4} += days{3}) == day{7}); | |
47 | static_assert((day{4} -= days{3}) == day{1}); | |
48 | ||
49 | static_assert(!day{}.ok()); | |
50 | static_assert(day{1}.ok()); | |
51 | static_assert(day{31}.ok()); | |
52 | static_assert(!day{32}.ok()); | |
53 | ||
54 | static_assert(unsigned{day{7}} == 7); | |
55 | ||
56 | static_assert(!(day{0} == day{1})); | |
57 | static_assert( (day{0} != day{2})); | |
58 | static_assert( (day{0} < day{3})); | |
59 | static_assert(!(day{0} > day{4})); | |
60 | static_assert( (day{0} <= day{5})); | |
61 | static_assert(!(day{0} >= day{6})); | |
62 | ||
63 | static_assert(day{0} <=> day{1} == std::strong_ordering::less); | |
64 | static_assert(day{3} <=> day{3} == std::strong_ordering::equal); | |
65 | static_assert(day{5} <=> day{2} == std::strong_ordering::greater); | |
66 | } |